This repository contains the Advanced Mesospheric Temperature Mapper (AMTM) data for the site of Logan, Utah, USA (41.7N, 111.8W) for the period July, 2022. The AMTM operated during nighttime (sun elevation angle < -8 degrees). The instrument filed-of-view is 120 degrees, centered at the zenith, and the exposure times ~35s. For more details, see Pautet et al., 2014.
The compressed files contain 1 night of data each. The folder name corresponds to the local time start and stop dates.
AMTM data are images corresponding to the hydroxyl (OH) (3,1) rotational temperature (Temp_caunXXXX.tif). They have been calibrated and unwarped and correspond to a 200x160 km area, with a linear scale (0.625 km/px), and a normal geographic orientation (North on the top, East to the right...).

The image format is TIFF with a secondary header located at position 200 providing the following information:

Byte position	#	Type	Description	Example	Memo
200-202	3	String	Beginning of GMS header	GMS	
203-204	2	INT	Width of the image	128	
205-206	2	INT	Height of the image	128	
207-208	2	UINT	Min intensity		
209-210	2	UINT	Max intensity		
211-214	4	ULON	LT second		
215-218	4	ULON	LT minute		
219-222	4	ULON	LT hour		
223-226	4	ULON	LT day		
227-230	4	ULON	LT month		+1 = month
231-234	4	ULON	LT year		+1900 = year
235-238	4	ULON	LT day of the week		
239-242	4	ULON	LT day of the year		
243-246	4	ULON	LT, Is it daylight saving time?		
247-250	4	ULON	UT second		
251-254	4	ULON	UT minute		
255-258	4	ULON	UT hour		
259-262	4	ULON	UT day		
263-266	4	ULON	UT month		+1 = month
267-270	4	ULON	UT year		+1900 = year
271-274	4	ULON	UT day of the week		
275-278	4	ULON	UT day of the year		
279-282	4	ULON	UT, Is it daylight saving time?		
283-296	14	String	Filter name	866	
297-298	2	INT	Emission height	0	
299-302	4	FLOAT	Exposure time	60.	
303	1	BYTE	Gain	2	
304	1	BYTE	X binning	8	
305	1	BYTE	Y binning	8	
306-309	4	FLOAT	CCD temperature		
310-313	4	FLOAT	Filter wheel temperature	-999.	
314-317	4	FLOAT	X km/pixel	0	
318-321	4	FLOAT	Y km/pixel	0	
322-369	48	String	Calibration coefficients		
370-373	4	FLOAT	Latitude		
374-377	4	FLOAT	Longitude		
378-381	4	FLOAT	Altitude		[Km]
382-411	30	String	Site name	Haleakala	
412-511	100	String	Comments		
512-599	88	…	…		
600-last		UINT	Image		Start from the last line

For more information, please send an email to Dominique Pautet (dominiquepautet@gmail.com).